On Thu, Dec 22, 2022 at 5:10 PM MikeS <[email protected]> wrote: > Great article, especially for learning different techniques. >
Thanks Mike. > > A few years back I needed some extra RAM for a small database so I cobbled > together a poor man's REX; just a 32K RAM chip piggybacked on the system > ROM with a couple of flying leads for /WE, /CE etc. > > Functionally it's a clone of EME's ExtRAM, compatible with all its tools > and utilities to load/save/dump/swap/etc. memory, load & save files and, > yes, PEEK and POKE the OptROM memory space. > > As the database grew I started on a 4MB bank switched version along the > lines of the XR4 but then Steve came out with the 4MB CP/M device; in the > end I finally moved it to a PC anyway ;-) > > Good stuff :-) Nice to have systems on a scale and simplicity where it's actually possible to DIY a hardware solution. Though, yeah the PC doesn't have the limitations to solve. -- John. >
